Brazilian Baring 487 



wider than long, with very feebly converging and nearly straight sides 

 broadly rounding in apical third, becoming sinuously oblique; punctures 

 fine, remote, becoming somewhat coarse but widely separated at the sides, 

 the smooth line not well defined and abbreviated; scutellum very moderate, 

 subquadrate; elytra fully one-half longer than wide, much wider than the 

 prothorax and between two and three times as long; grooves deep, especially 

 toward base and apex; intervals sometimes rather convex, minutely punctate 

 in single series; legs, head and beak black, with more or less metallic lustre; 

 male abdomen feebly impressed medially at base, the fifth segment minutely 

 bisinuate at the middle of the hind margin. Length 6.0-6.8 mm.; width 

 2.7-3.0 mm. Brazil (the locality not stated). Five specimens, received 



from Desbrochers des Loges. [Baridius ruficollis Boh.] ruficollis Boh. 



Form and coloration nearly similar but much smaller in size, polished and glabrous; 

 prothorax bright rufous throughout, the head, beak, legs and under surface 

 of the hind body black, the last two with feeble bluish lustre, the mesosternum 

 and tibiae piceo-rufous; elytra black, with bright greenish-blue lustre; beak 

 (o 71 ) evenly cylindric, finely, loosely punctate, evenly, moderately arcuate 

 and nearly three-fourths as long as the prothorax; antennae black, piceous 

 basally; prothorax a fourth wider than long, the sides feebly convergent 

 and slightly arcuate, rounding and oblique in apical fourth; punctures 

 strong but sparse, becoming coarse but distinctly separated at the sides, the 

 smooth median line abbreviated; scutellum quadrate, deep black; elytra 

 one-half longer than wide, a fourth wider than the prothorax and much 

 more than twice as long, parallel, very obtuse at apex, with large and feebly 

 tumid humeri; grooves deep, a little coarser basally and very much coarser 

 apically, feebly crenately punctate; uniserial interstitial punctures minute 

 and widely separated; pygidium flat, coarsely cribrate; male abdomen with 

 a very feeble median impression at base, the fifth segment with two minute 

 emarginations, separated by a broad lobe. Length 5.25 mm.; width 2.4 

 mm. Brazil (Rio de Janeiro). November. One specimen., .compta n. sp. 



The male abdominal characters throughout are of the same order 

 as in ruficollis and compta, as described above. 



Orthobaridia n. gen. 



In this genus the body is rather small in size, parallel, moderately 

 convex, shining and glabrous. Beak short, thick, not evidently 

 compressed, straight beneath, broadly arcuate above in profile, and 

 separated from the head by a deep reentrant angle. The antennae 

 are at apical third, the club oval, pubescent, about as long as the 

 three or four preceding joints, with moderate sutures, the first 

 segment two-fifths of the whole. Prosternum shallowly and not 

 very sharply sulcate, the coxee moderately separated and the 

 posterior lobe rather prominent but rounded. Prothorax without 

 vestige of anterior constriction or tubulation, the basal lobe small, 

 gradual and cuspidiform, the scutellum free, transversely oval and 

 the elytra with coarse impressed striae and convex intervals. Pygid- 

 ium peculiar, being small, transverse, strongly, loosely punctate, 

 feebly convex and oblique, but with the obliquity inward, so that 

 it is wholly invisible from above. Legs simple, rather short, the 



